LG CM7420, CM7520, CM7520-AU, CM7420-AU User Manual

OWNER’S MANUAL

Mini Hi-Fi System

Please read this manual carefully before operating your set and retain it

for future reference.

CM7520 (CM7520, CMS7520F/W)

CM7420 (CM7420, CMS7520F)

1 Getting Started

Getting Started2

Getting Started

Safety Information

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC

SHOCK DO NOT REMOVE COVER (OR BACK) NO

USER-SERVICEABLE PARTS INSIDE REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

This lightning ash with arrowhead

symbol within an equilateral triangle

is intended to alert the user to the

presence of uninsulated dangerous

voltage within the product’s

enclosure that may be of sucient

magnitude to constitute a risk of

electric shock to persons.

The exclamation point within an

equilateral triangle is intended

to alert the user to the presence

of important operating and

maintenance (servicing) instructions

in the literature accompanying the

product.

WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK

HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN

OR MOISTURE.

WARNING: Do not install this equipment in a

conned space such as a book case or similar unit.

CAUTION: Do not block any ventilation openings.

Install in accordance with the manufacturer’s

instructions.

Slots and openings in the cabinet are provided for

ventilation and to ensure reliable operation of the

product and to protect it from over heating. The

openings shall be never be blocked by placing

the product on a bed, sofa, rug or other similar

surface. This product shall not be placed in a built-

in installation such as a bookcase or rack unless

proper ventilation is provided or the manufacturer’s

instruction has been adhered to.

CAUTION: This product employs a Laser System.

To ensure proper use of this product, please read

this owner’s manual carefully and retain it for future

reference. Shall the unit require maintenance,

contact an authorized service center.

Use of controls, adjustments or the performance of

procedures other than those specied herein may

result in hazardous radiation exposure.

To prevent direct exposure to laser beam, do not

try to open the enclosure.

CAUTION concerning the Power Cord

Most appliances recommend they be placed upon

a dedicated circuit;

That is, a single outlet circuit which powers only

that appliance and has no additional outlets or

branch circuits. Check the specication page of this

owner’s manual to be certain. Do not overload wall

outlets. Overloaded wall outlets, loose or damaged

wall outlets, extension cords, frayed power cords, or

damaged or cracked wire insulation are dangerous.

Any of these conditions could result in electric

shock or re. Periodically examine the cord of your

appliance, and if its appearance indicates damage

or deterioration, unplug it, discontinue use of the

appliance, and have the cord replaced with an

exact replacement part by an authorized service

center. Protect the power cord from physical or

mechanical abuse, such as being twisted, kinked,

pinched, closed in a door, or walked upon. Pay

particular attention to plugs, wall outlets, and

the point where the cord exits the appliance. To

disconnect power from the mains, pull out the

mains cord plug. When installing the product,

ensure that the plug is easily accessible.

Getting Started 3

Getting Started

This device is equipped with a portable battery or

accumulator.

Safety way to remove the battery or the

battery from the equipment: Remove the

old battery or battery pack, follow the steps

in reverse order than the assembly. To prevent

contamination of the environment and bring on

possible threat to human and animal health, the

old battery or the battery put it in the appropriate

container at designated collection points. Do

not dispose of batteries or battery together with

other waste. It is recommended that you use

local, free reimbursement systems batteries and

accumulators. The battery shall not be exposed to

excessive heat such as sunshine, re or the like.

CAUTION: The apparatus shall not be exposed to

water (dripping or splashing) and no objects lled

with liquids, such as vases, shall be placed on the

apparatus.

You have to set the disc format option to [Mastered]

in order to make the discs compatible with the LG

players when formatting rewritable discs. When

setting the option to Live File System, you cannot

use it on LG players.

(Mastered/Live File System : Disc format system for

Windows Vista)

Table of Contents4

Table of Contents

1 Getting Started

2 Safety Information

6 Unique Features

6 Accesories

6 Playable file Requirement

6 – MP3/WMA music file requirement

6 – Compatible USB Devices

6 – USB device requirement

7 Remote control

8 Front panel

10 Rear panel

2 Connecting

11 Connecting to speakers

11 – Attaching the speakers to the unit

12 Optional Equipment Connection

12 – AUX IN Connection

12 – PORT. IN Connection

13 – USB Connection

13 – Antenna Connection

3 Operating

14 Basic Operations

14 – CD/USB Operations

15 – Selecting a folder and an MP3/WMA

file

15 – Deleting an MP3/WMA file

16 Other Operations

16 – Programmed Playback

16 – Turn off the sound temporarily

16 – AUTO DJ playback

17 – Displaying file information (ID3 TAG)

17 – DEMO

17 – Using Microphone

18 Radio Operations

18 – Listening to the radio

18 – Presetting the Radio Stations

18 – Deleting all the saved stations

18 – Improving poor FM reception

19 Sound adjustment

19 – Setting the surround mode

19 – Setting the USER EQ

20 Setting the Clock

20 – Using your player as an alarm clock

20 – Sleep Timer Setting

20 – Dimmer

21 Advanced Operations

21 – Listening to music from your portable

player or external device

21 – Woofer ON/OFF (CM7520)

21 – Recording to USB

22 – Dubbing USB to USB

Table of Contents 5

4 Troubleshooting

23 Troubleshooting

23 – General

5 Appendix

24 Trademarks and Licenses

25 General specifications

26 Speaker specifications

27 Maintenance

27 – Notes on Discs

27 – Handling the Unit

Getting Started6

Getting Started

Unique Features

Portable In

Listens to music from your portable device. (MP3,

Notebook, etc)

USB Direct Recording

Records music to your USB device.

Accesories

Please check and identify the supplied accessories.

FM Antenna (1) AM Antenna (1)

Remote Control (1) Batteries (2)

Playable file

Requirement

MP3/WMA music file

requirement

MP3/WMA le compatibility with this unit is limited

as follows.

Sampling frequency : within 32 to 48 kHz (MP3),

within 32 to 48 kHz (WMA)

Bit rate : within 32 to 320 kbps (MP3),

40 to 192 kbps (WMA)

Maximum les : Under 999

File extensions : “.mp3”/ “.wma”

CD-ROM le format : ISO 9660/ JOLIET

We recommend that you use Easy-CD Creator,

which creates an ISO 9660 le system.

Compatible USB Devices

MP3 Player : Flash type MP3 player.

USB Flash Drive :

Devices that support USB2.0 or USB1.1.

The USB function of this unit does not support

all USB devices.

USB device requirement

Devices which require additional program

installation when you have connected it to a

computer, are not supported.

Do not extract the USB device while in operation.

For a large capacity USB, it may take longer than

a few minute to be searched.

To prevent data loss, back up all data.

If you use a USB extension cable or USB hub, the

USB device is not recognized.

Using NTFS le system is not supported. (Only

FAT(16/ 32) le system is supported.)

This unit is not supported when the total

number of les is 1 000 or more.

External HDD, Card readers, Locked devices, or

hard type USB devices are not supported.

USB port of the unit cannot be connected to PC.

The unit cannot be used as a storage device.

Getting Started 7

Getting Started

Remote control

Battery Installation

Remove the battery cover on the

rear of the Remote Control, and

insert two (size AAA) batteries

with

and

matched correctly.

• • • • • •

(POWER) : Switches the unit

ON or OFF.

(OPEN/CLOSE) : Opens and

closes the disc tray.

PRESETFOLDER

Searches for a folder of MP3/

WMA les. When a CD/USB

containing MP3/WMA les in

several folders is being played,

press PRESETFOLDER

to select the folder you want to

play.

Chooses a preset number for a

radio station.

FUNCTION : Selects the function

and input source.

MUTE

: Mutes the sound.

VOL +/- : Adjusts speaker volume.

• • • • • •

PROGRAM/MEMORY :

Stores radio stations.

Creates a playlist you want to

listen to.

USB REC : USB direct recording.

USB SKIP :

Switches between

USB 1 and USB 2.

Press

USB SKIP

in the USB 1/2

mode.

REPEAT (MENU) : Listens to

your tracks/les repeatedly or

randomly.

TUNING-/+ : Selects the radio

stations.

(Skip/Search) :

Skips Fast backward or Forward.

Searches for a section within a

track/le.

ENTER :

Stops playback or recording.

Cancels DELETE function.

(Play/Pause) : Starts or

pauses playback.

SOUND EFFECT : Chooses sound

impressions.

AUTO DJ : Selects the AUTO DJ

mode. (For more information refer

to the page 16)

DEL. : Deletes MP3/WMA les.

(USB only)

• • • • • •

0 to 9 numerical buttons : Selects

numbered tracks, les, or preset

number.

INFO : See information about your

music. MP3 les often come with

ID3 tags. The tag gives the Title,

Artist, Album or Time information.

SLEEP: Sets the system to turn off

automatically at a specified time.

(Dimmer : The display window will

be darkened by half.)

• • • • • •

REGION EQ : Chooses region

equalizer.

Getting Started8

Getting Started

Front panel

Getting Started 9

Getting Started

TIMER

With the TIMER function you can turn CD, USB

play and TUNER reception on or o at a desired

time.

CLOCK

For setting the clock and checking the time.

SET

Conrms the setting.

(Power)

Backlightings

Stops playback or cancels DELETE function.

e Y

Prev./Scan

Selects the CD function.

AUX/PORT. IN

Selects the AUX or PORT. IN function.

USER EQ

Controls sound register.

WOOFER ON/OFF / DEMO (CM7520)

Turns woofer speakers on or o.

Shows demo.

DEMO (CM7420)

Shows demo.

LATIN EQ

Chooses locally special equalizer.

AUTO DJ

Selects the AUTO DJ mode. (For more informaion

refer to the page 16)

BASS BLAST

Selects the BASS BLAST or BYPASS sound

directly.

PORT. IN jack

MIC jack

MIC VOL.

Display window

Volume knob

Adjusts speaker volume.

ENTER

- Selects a folder when searching a le.

- Selects the BASS, MIDDLE, AND TREBLE when

setting USER EQ.

FOLDER

Moves to folder and le selection mode.

DEL.

Deletes MP3/WMA les. (USB only)

FILE SEARCH

Moves to the another track /le.

USB 1/2 Port

You can play or record sound les by connecting

the USB device.

USB REC

Records to USB.

ST./MONO

Starts or pauses playback.

Selects Stereo/Mono.

Next/Scan

USB 1/2

Selects the USB function.

TUNER

Selects the TUNER function.

SOUND EFFECT

Chooses sound impressions.

v R

(OPEN/CLOSE)

Disc tray

+ 19 hidden pages